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From: Marek Vasut <marek.vasut@gmail.com>
To: masonccyang@mxic.com.tw, Lee Jones <lee.jones@linaro.org>
Cc: bbrezillon@kernel.org, broonie@kernel.org,
devicetree@vger.kernel.org,
Geert Uytterhoeven <geert+renesas@glider.be>,
Simon Horman <horms@verge.net.au>,
juliensu@mxic.com.tw, linux-kernel@vger.kernel.org,
linux-renesas-soc@vger.kernel.org, linux-spi@vger.kernel.org,
mark.rutland@arm.com, miquel.raynal@bootlin.com,
robh+dt@kernel.org,
Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Subject: Re: [PATCH v13 3/3] dt-bindings: mfd: Document Renesas R-Car Gen3 RPC-IF controller bindings
Date: Tue, 18 Jun 2019 14:01:40 +0200 [thread overview]
Message-ID: <2671d488-82a1-8720-d9a1-03554d955a38@gmail.com> (raw)
In-Reply-To: <OFDA7648A0.F1733EA5-ON48258411.002946DF-48258411.002A2F0D@mxic.com.tw>
On 6/6/19 9:40 AM, masonccyang@mxic.com.tw wrote:
[...]
> RPC-IF works either in SPI or HyperFlash is decided by external hardware
> pins
> configuration and it can NOT switch it's operation mode in the run time.
> This is not like my understanding of MFD.
Which external hardware pins decide the RPC configuration ?
It seems to me like PHYCNT register, PHYMEM bitfield, selects what
device is connected, and then a couple of other bits control the
communication, but I see nothing which would be tied to any external
configuration pins.
[...]
--
Best regards,
Marek Vasut
next prev parent reply other threads:[~2019-06-18 12:01 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-21 7:19 [PATCH v13 0/3] mfd: Add Renesas R-Car Gen3 RPC-IF MFD & SPI driver Mason Yang
2019-05-21 7:19 ` [PATCH v13 1/3] mfd: Add Renesas R-Car Gen3 RPC-IF MFD driver Mason Yang
2019-06-03 13:02 ` Lee Jones
2019-06-04 0:52 ` masonccyang
2019-05-21 7:19 ` [PATCH v13 2/3] spi: Add Renesas R-Car Gen3 RPC-IF SPI controller driver Mason Yang
2019-05-21 7:19 ` [PATCH v13 3/3] dt-bindings: mfd: Document Renesas R-Car Gen3 RPC-IF controller bindings Mason Yang
2019-05-22 16:50 ` Sergei Shtylyov
2019-05-23 9:16 ` masonccyang
2019-06-03 13:04 ` Lee Jones
2019-06-03 14:55 ` Sergei Shtylyov
2019-06-06 7:40 ` masonccyang
2019-06-18 12:01 ` Marek Vasut [this message]
2019-06-19 7:36 ` masonccyang
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